Biological taxa that first appeared during the Anisian Age, the geologic time, between 247.2 and 242 million years ago, during the Middle Triassic Epoch.
Subcategories
This category has the following 2 subcategories, out of 2 total.
A
G
Pages in category "Anisian first appearances"
The following 15 pages are in this category, out of 15 total. This list may not reflect recent changes.